Automatic sales system



June 15, 1937. FURBER AUTOMATIC SALESISYSTEM Filed April 27, 1933 9Sheets-Sheet 2 IN V EN TOR.

v -JMR'M ATTORNEYS inn HI Q: nhzuu ON June 15, 1937. H. J. FURBER2,083,947

AUTOMAIIC SALES SYSTEM Filed April 27, 1953 9 Sheet s -Sheet 3 'm o n, n

ATTORNEYS.

June 15, 1937. H J -F ER I 2,083,947

' AUTOMATIC SALES SYSTEM Filed April 27. 19:53 9 Sheets-Sheet 4 I I N VEN TOR.

haw/ JeweZZ FMM B Y ATTORNEYS.

{Lane 15, 1937. H. .1. FURBER 2,083,947

AUTOMATIC SALES SYSTEM Filed April 27, 1935 9 Sheets-Sheet e H Jwdz5446;); BY

A TTORNEYS.

June 15, 1937. H. J. FURBER I AUTOMATIC SALES SYSTEM Filed April 27,1933 FIGL. 16.

9 Sheets-Sheet 7 CU C 0 cu (:0 cu

INVENTOR.

A TTORNEYS.

June 15, 1937. H. J. FURBER AUTOMATIC SALES SYSTEM 9 Sheets-Sheet 8Filed April 27, 1933 INVENTOR.

FIG..17.

FI G. 19

A TTORNEYS.

June 15, 1937. H. J. FURBER 2,083,947

' AUTOMATIC SALES SYSTEM Filed April 27, 1933 9 Sheets-Sheet 9 A "H, I Id 1 acxac- W to) lg a '9 My [III I III] INVENTOR, M l-L pm BY 3 ATTORNEYS.

Patented June 15, 1937 UNlTED STATES PATENT OFFICE AUTOMATIC SALESSYSTEM Henry Jewett Furber, Miami, Fla. Application April 27, 1933,Serial No. 668,280

32 Claims.

This invention relates to improvements in an automatic sales system.

, An object of the invention is to provide apparatus which may vend anunlimited variety 5 of merchandise at the same or at different prices;'which accepts in payment any coin or combination of coins whichconstitute the price; which permits the vendor to. change at volitionthe price of any or all merchandise on sale; and

, which will render change, in the event of overpayment; whateverbetheprice of merchandise and whatever be the excess paid.

Another object of this invention is to provide mechanism which permits apurchaser indefinitely to cumulate his purchases; and make a singlepayment of their total price.

Another object of the invention is to provide apparatus which permitsthe purchaserto multiply the amount of merchandise purchased at a singlemanipulation of the manual controls; and multiplies correspondingly theprice which is set up.

Another object of the invention is to provide'a system wherebycalculating units may be banked at centrals, and be operated by electriccurrent from control boards located at vending stations which may bemore or less remote;

Another object of this invention is to provide a selector which permitsa lesser number of cal- 0 culating units to serve a larger number ofvending stations or control boards, by automatically closing circuitsbetween any certain control board brought into operation and acalculating un which may happen to be disengaged.

5 Operation in general terms Broadly expressed, my invention comprehendsa system wherein at a single store or shop a customer may purchase anyone or more of several into the machine. The machine automaticallyreturns the change, if any, with the purchased goods. The purchasercannot change the price of the goods fixed by the proprietor; nor-can hereceive his goodsuntll the machine automatically deducts from the amountof money deposited the price of the goods. Unless the full price of thegoods is deposited the apparatus will not deliver the goods.

A purchaser may purchase several articles of the same goods at onestation. The apparatus 5 will automatically add the price ofeach articleand automatically deliver the change from the total amount deposited. Iftwo or more purchasers are operating at the same time, the apparatus isautomatically adjusted toallow this 10 and to deliver at each stationthe proper article purchased and the proper amount of change. Thesefunctions are regulated by making and breaking certain circuits whichcontrol the mechanism, preferably operated all from a single con- Itinuously running motor, important features of the mechanism beingelectrically operated clutches for connecting the various mechanism withthe continuously operated motor. Electrical. clutches may be made toclutch' and-unclutch cleanly and quickly and are largely employed in thetransmission.

General description of merchandise and the determination of the salesprice, together with mechanism for ejecting change.

Figure 2 is a view of the upper section of a control board, showing coinreceivers with the mechanismand electrical connections which govern thesetting up of payment, together with mechanism for the release ofmerchandise.

Figure 3 is a diagrammatic view-of the calculating mechanism at whichthe amount of price and payment and the balance of payment over price,if any, are set up, together with mechanism and electrical connectionswhich control the release of change.

Figure 4 lsa view from the right, of the calculating mechanism, shown inFigure 3, along the imaginary line A-A.

Figure 5 is a perspective and diagrammatic view from the right showingthe arm 18 (Fig. 15) with typical electrical connections.

Figure 6 shows in detail the type of rotary electromagnet which isemployed in the transmission disclosed in Figure 3.

- disk H (Fig. 3) operative in restoring elementsof the apparatus tozero position, at the close of 1 change. a

k 'I'is adetailed view of the contact disk 54 (Fig. 3) which controlsthe release of the live cent, dime and twenty-five cent coins as Figure8 is a view in detail from the left, of a a transaction.

Figure 91s a side view with electrical connec-- tions, of a purchaselever I, such as shown in- Figure 1.

Figure 10 exposes details of the purchase lever LshowninFigureslahdll.

- "ting up a corresponding price.

' tard their. fall lished.

Figure 11 is'a view from the right 01' certain I detents which obstructthe passage of tendered coins, until a sale has been effected, andreuntil certain circuits are estab- Figure 12 is a sectional view of thedisk is shown in Figure 1, together with mechanism and electricalconnections which it controls, for varying the amount of merchandisereleased and set- Figure 13 is a diagrammatic view of the circuitsclosed through the mechanism shown in Figure 12, together with mechanismthereby brought into operation, which may vary the amount'oi merchandisereleasedand determine the correspondingly'augmented price.

Figure l4 is adiagrammatic side view of arms 18, 18' showing roupingof-theterminals at which they may close circuits in arresting motion atthe calculating mechanism of Figure 3 in conformity to 'asales price ora tender.

.- Figure 151s a view of the electro-motor which transmits motion to thecalculatin mechanism (Fig; 3) together with the arms 18, 18' andmechanism and electrical connections for operating the switch S of aselector designed to close cir-- cuits' between acontrol board (Figs. 1,2) and a calculating unit (Fig. 3) i Figure 16 is a diagrammatic planview ofa plurality of control boards and a plurality of calculatingunits, together with a scheme of wiring through intervening selectingswitchboards, which permits circuits to be closed between a controlboard and a calculating unit which happens to be free. -l.

Figure 17 is a detailed view of a switchboard of the selector withmechanism which prevents a control-board from closing circuits on morethan I board shown in Figure 1'1, with sales system.

units operated by. a single motor, showing diagrammatically a generalarrangement of the Referring to the drawings:--Figures 1; and 2represent a control board provided with manual sales levers L, L. L",(Fig. 1) and receivers for-theone, five, ten and twenty-five cent coins(Fig. 2). Higher denominations may be emplayed; and the sales levers(Fig. 1) may indefinitely be increased in number, there being resaidnumerals.

the wires and the planetary contacts on wires quired as many of suchsales levers as there be varieties of articles 'of merchandise for sale.vEach sales lever, L, L, L", comprises one or more bars, such as bars 2,2, (Figs. 1, 9) fixed to pivot 3. The number of bars common to a saleslever corresponds to ascending decimal columns in the price of goods,and operate respectively on progressive sections (cent, dime, dollaretc.) of a calculating unit (Fig. 3) which will be present- 1ydescribed.

In the present drawings, the sales levers (Fig.

l) are represented with two such bars, 1,2, on

each of which is inscribed a scale of numerals from zero to nine,corresponding to units of value, the lefthand bar 2' at each sales leverrepresenting dimes, and the right-hand bar representing'cents. All barsand sales levers are substantially alike. Each bar 2, 2', (Fig. 1) isprovided with a sliding sleeve I, 4', which may be adjusted by thevendor, so -as to expose through a perforation in its face, any certainone of the The numeral or numerals ex- ,sed on the bar or bars at anysales lever, represent and. determine the price of the article whosesale may be eflected at such sales lever.

A thumb screw I8 (Fig. 9) for holding a sleeve in any set position, isprovided.

When the price has been established by the vendor, the manipulation ofasales lever L, L, .L" by a purchaser, releases merchandise and sets upits price on what may be called audit wheels 45, 45' of calculatingmechanism (Fig. 3), afterwards described, which in present drawings isshown as consisting of two' sections corresponding for example to centsand dimes.

Mechanism for setting up a price and releasing merchandise Bar 2 (Fig.l) carries a collarll (Fig. 9) which at its upper extremity slides uponthe spindle 20 and isprovided with a projecting foot 9. This collar I I,under tension of a spring l2, rests nor- "mally upon the extremity ofthe sleeve 4. When closing certain circuits, presently described, at

bridges l4, l5,= it. There are only two vertical positions which member8 can occupy. In raised position it rests on the sleeve 4 and cannotengage the member lll. When the sleeve 4 is displaced in setting upprices, whatever the price may be, the member '8 descends slightly andrests on the extremity of the bar 2. It is then in position to engagethe member II (Fig. 9) and moves no further than suflicient to engagel0, whatsoever be the displacement of the sleeve 4.

The sleeve 4 (Fig. 9) carries at opposite faces and extremities contactsI, 6 which, when a sales lever be operated by a purchaser, may closecircuit through one oifthe wires b to b, which wires extend pastallsales levers and are exposed to contacts at all sleeves (Fig. 1). The

b to b (Fig.9) are staggered at opposite sides of bar 2 in order to savespace.

. wire of series 17 to b may be engaged at any certain sleeve, atthe'same time; although, as

"thereon, contact I which is in the pathway of the terminal of wire andwhich is permanently connected with a current conductor l8 extendingalong bar 2 (Fig. 10) in such manner, that this conductor shall engagethe contacts i 6, whatsoe'ver be the position of sleeve 4, to the effectthat when the sales lever be displaced a circuit is closed between aselected wire of series b to b and the wire c. The 17 wire pr'wiresselected at sleeves 4, 4' govern the price transmitted in cents anddimes, to the cent section and the dime section of the calculatingmechanism (Fig. 3).

Circuits closed at plungers' l0, l0 (Fig. 1) lead through wires e, e' towhat I denominate, for lack of a better term, relays E12, 111.2- (Fig.3) which provoke movement of the audit wheels 45, 45 (Figs. 3, 4). Thewiresb selected (Fig. 1)

supply current through the wires 0, c respectively to the positive polesof the relays El.4, EM (Fig.1) which presently break, at bridges '63,63',

the circuits of the wires e,,e', deenergizing thereby the relays E11,E12 (Fig. 3) and arresting the audit wheels 45,- 65 when they haveseverally reached, as presently described, angles of displacementcorresponding to the price.

The sections of calculating mechanism (Fig. 3) corresponding to cents,dimes, dollars, etc. are substantially alike; and each such section isrep resented by a bar 2, 3' etc. (Fig. 1)., at each sales lever,'L, L,L" etc.

The periphery of the audit wheels 45, 45' (Figs. 3, a) may supposedly bedivided into ten equal spaces of 36, from zero to nine, correspondingrespectively to-units or value in cents and dimes in conformity to theserial numbers of wires b and the numerals inscribed on bars 2, 2' (Fig.1).

Movement is communicated to the audit wheels fit, t5, as will further beexplained, from motor M (Fig. 15) which is in continued motion, througha series of shaitswheels and electric clutches (Figs. 15, 3), 35, 3t,ti'i, 3i), Elli or E13), 38 or so, it, 623, Ell, hill and thence fromEl?! through t3, st (Figs. 3, 4) to audit wheel ll of the cent section,and irom E155" (Fig. 3) through ($23, differential D to, M3", to auditwheel 65' oil the dime section. The gearlngs 53, to (Figs. 3, 4)respectively with the audit wheels M5, 35 control, asshail later appear,the release of change.

Depressicnoi the plunger is (Figs. 1. 9) by bar at a. sales lever(Fig. 1) provokes movement or the audit wheel it) (Fig. Ii). Thedepression of the plunger it (mg. l) by bar 2' provokes move ment of theaudit wheel 45. The action is similar at all the saleslevers.

The moment at which the relays Elli, EM (Fig. 1) shall loreelr, atbridges (it, to, circuit to the relays Eli, EM. (Fig. 3) is timed by thearms lti, ll) (Figs. M, 15). These arms it, 1% (Fig. 15) are pivoted incommon upon the shaft it, and are constantly. revolved in unison, say,for example, twenty times a minute, by the motor M, through shaft 35',pinion 5i, and wheel-i2. The ratio of transmission from shaft 35', toshaft 1'3, compared with the transmission from shaft 35 to the auditwheels 45, 45' (Fig. 3), is as one to ten. The arms 18, i8 carry,respectively, a series of conductors I9 to 18, 19 to W (Fig. 14) whichmay progressively close circuit between numerous pairs of terminalsfixed on benches at setting up of sales.

opposite sides of their several pathways. The position and pathway ofarm I8 between two such benches 83', 84' is indicated diagrammaticallyin Figure 5, as well (Fig. 15). For purposes of momentary illustration,attention may be restricted to the terminals of wire a and b to bcarried by the benches 83', 84' (Fig. 5) at which circuits may be closedto the positive poles of the relays 111.4, 1521.4 (Fig. 1), circuits tothe negative poles whereof may be simultaneously closed from wires b tobupon wire (I -through similar terminals on the benches 8| 82', at arm18 (Figs. 15, 20). In Figure 5 thebenches 83', It are shown as parallelone to the other. These benches'as well as benches 8|, 82' mayconveniently, however be placed in intersecting positions as shown inFigure 14.

The terminals of wires b to b (Fig. 5) are so spaced on the bench 84'that the movement of arms 18 to one and then another of said terminalscorresponds to a one space or unit displacement of audit wheels 45, 45'(Fig. 3).

The space displacements of the audit wheels 5, 45 at which they shall beseverally arrested, coincide, accordingly, with the serial number ofthe 1) wire or wires selected at the sales lever (Fig. 1)

and with the numerals exposed on bars 2, 2'.

As will subsequently appear, the same relays, through extensions fromthe same wires e, e (Figs. 1 and 2), perform the same functions,duringtender, the motion of audit wheels being then reversed by actionof the relay 121.3 (Fig. 3) Movement of the audit wheels 45, 45' isclockwise during tender, and in opposite direction during At thebeginning of each transaction the position of the audit wheels 8E),

45' is zero, from which position they are displaced in response tosales, and to or through which-they are returned by tender. A moredetailed disclosure of the operations above described, now

iollows:-

' It being assumed that the price of an article sold, for. example, atthe sales lever L, be two cents, the vendor leaves the dime sleeve (3'undisturbed and adjusts the cent sleeve 5 (Fig. 1) on right hand bar 2,so that the numeral 2 appears through the perforation in the sleeve,securing the sleeve in such position by thumb screw is (Fig. 9). Contactii is then in the pathway of the terminal oi wire b and the collar 6 1,released by sleeve is pressed down by the spring 32, so that the foot E)is in the pathway of plunger The vendors task. is then completed.

v A customer, in order to purchase the merchan= disc, setting up usincident thereto, two cents, on audit wheel i oi. calculating mechanism(Fig. 3), may now turn down the sales lever L, (Fig. i) on its pivot(*3, by means of the projecting ham die 6 at the extremity of spindle2E3. Plunger iilis thereby depressed by foot o and interrupts at bridge86 a circuit through wire 0 (Figs. 1., 9) which is so extended that itmay be broken by operation of any sales lever (Fig. 1). This oleenergizes the relay Ell.

The current of circuit 0 to relay EM, so

broken, originates at source Z2 (Fig. 3) and 1) the relay-51.5 releasesthe plunger 24 which is thereupon pressed outward by the spring 23 intosuch position that it bars movement of a leased by the plunger 24 atcompletion of purchase, as presently described.

The relayELI remains inactive until the pur-' chaser shall havepurchased all the merchandise which he desires and shall have paid forall in full.

The sales lever L, when deflected closes at bridge I5 on the plunger I(Fig. 1) circuit through wire m (Figs. 1, 2) to the negative pole of thesolenoid El." (Fig. 2) which releases the selected merchandise. Thecircuit so closed originates at the source ZZ (Fig. 3) and passesthrough wire 8- (Figs. 3, -15, 2, 1) bridge I5, wire m- (Figs. 1, 2),solenoid El.I3 (Fig. 2), wire m+ (Figs. 2, 1), and normally, throughcontact plate I51 (Figs. 1, 13) attached to a disk I80 (Fig. 13)presently described, which is superimposed by the disk I3 (Fig. 1). Thecircuit passes thence through wire 3+ (Figs. 1, 15, 3) back to source ZZ(Fig. 3).

The solenoid El.l3 (Fig. 2) thus energized retracts its plunger I02 andby a bell-crank lever I03, draw-bar I04 and latch I05, I05 releases apackage of merchandise I08. This package I08 now falls upon an inclinedslideway I01, whence it descends by gravity through the chute I08 andfalls upon the door 25 (Fig. 1) bolted, as above stated, by the plunger24. In order to prevent fraud, the package I08 is delivered to thepurchaser, as later described, only at the termination of thetransaction, after tender shall have been fully made.

The price of the merchandise, two cents, is set up on the cent auditwheel 45 (Figs. 3, 4), which is brought into action by circuit to thenegative pole of relay El.2, (Fig. 3) closed through wire e at bridge I4(Fig. 1); and-by the positive wire a (Fig. 15, 3), presently describedmore fully. The circuit so closed originates at source ZZ (Fig. 3) andpasses through 3+ (Figs. 3, 15) wire 9 (Figs. 3, l5) contact-plate I4carried by wheel I2, wire 9&(Fig. 15, 3) bridge 58, relay El.2, (Fig. 3)wire e (Fig. 3, 15) a multiple switch 8, (Fig. 15') wire e (Fig. 15,1)bridge I4 (Fig. l)' and wire s'-- (Figs. 1, 2, l, 15, 3) back to sourceZZ (Fig. 3).

RelayElJ (Fig. 3) is energized only momentarily, through wire a butcontracting its plunger is held in stick by current through wire itwhich, originating at source ZZ, passes through wire 3+, bridges II, 50,on the plunger of the relay El.2, now closed, to the positive pole ofrelay El.2, the circuit being continued at the negative poles thereofthrough wire e back to source ZZ, as immediately above described.Interruption of the initial circuit supplied through wire a will be morefully explained later.

Reference has been made to the multiple switch s (Fig. 15). All controlwires between control .board (Figs. 1,' 2) and calculating mechanism(Fig. 3) pass through the switch 8.. For sake of brevity, accordingly,switch 8 and Figure 15 will be assumed but not always again bementioned, in tracing circuits between the control board (Figs. 1, 2)and the calculating mechanism (Fig. 3) until said switch 8 be laterspecially described. Circuits are so identified by letters, numbers, andpositions, that they may conveniently be traced directly between Figures1, and 3, without reference to the intervening Figure 15.

Relay El.2 (Fig. 3), energized as above described, through wire a andheld in stick through wire. Ii, closes through wire it the circuit totherelay E13. The purpose of relay ELI (Fig. 3)

is to prevent short cirguiting, by closing during sales and tendercertain circuits deriving current from the wire it and breaking certaincircuits deriving current from a wire n, presently described, and byclosing such circuits deriving current from the wire 11., and breakingsuch cir- 5 cults deriving current from wire it, during eventualrestoration of mechanism to zeroposition and release of change.

Relay El.8 is energized through circuit which originates at source ZZ,and passes through wires 10 s+, bridge 8i at relay El.2, or bridge 8| atrelay Ei.2, wire it, relay El.8, and wire s,- back to source ZZ. Throughbridges 81, 88, I0, (Fig. 3) the current passes when relay El.8contracts its plunger through extensions of positive wire h, whichextensions having all a common origin, may severally henceforth betraced from the said bridges. From bridge 61 extends the circuit throughwire it, to the electric clutch El.5, whence it passes through the wires over bridge 55 depressed at relay E13, back to source ZZ. Electricclutch El.5, fixed upon the constantly revolving shaft 38, is anelectro-magnet of a type (Fig.

6) presently described. Energized as above, the electric clutch El.5clutches wheel 39 (Fig. 3) 2 floating on shaft 38, and transmits motionthrough wheel 4I fixed on shaft 42 to electric clutch ELI fixed likewiseon shaft-42. The supply circuit to electric clutch ELI, which is closedby relay El.2 at bridge 62, originates at source ZZ and flows throughwires s+ over bridge 82, through electric clutch Eli and through wires-, back to source ZZ. The electric clutch El.I

. so energized, clutches wheel 43 (Figs. 3, 4) floating on shaft 42, andtransmits movement through idler 44 to the audit wheel 45 fixed on shaft46. All wheels disclosed in this specification are toothed throughout.There are no mutiiiated gearings.

Electric clutch El.5, El], and all other rotatable electros disclosed inpresent specification, are of the general type represented in Figure 6which more particularly resembles electric clutch El.8 (Fig. 3) andwhich consists of a metallic casing I25 (Fig. :6) fixed upon a rotatableshaft such as shaft 48, within which casing I25 is wound a core I28, thepoles I21, I28 of which are respectively connected with contact bandsI29, I20 encircling in whole or in part the exterior of casing I25, andhaving contact with terminal brushes I3I, I32 of wires and Responsive tothe electromagnet and rotated thereby, may be simply a metallicwheelsimilar to wheels 38 and 42 (Fig. 3) which float rotatably upontheir shafts. The responsive member may however be a disk such as diskI32 (Fig. 6), for example, mounted on an hexagonal section of a shaft itis designed to rotate, with detents 52, 52 fixed to some convenient partof the casing, against which disk I33 may beheld by spring I 34 when notengaged by its electromagnet. I I i Through the completion of circuitsat the plunger of the relay El.2, shaft .42 and audit wheel 45 are setin motion.

The price being two cents, the circuit to the relay El.4 (Fig. l) whichis presently completed through arms I8, I8 (Fig. 15) at the terminal ofwire 1) (Figs. 5, 15) and at corresponding terminal'of wire b a't arm18', originates at source ZZ (Fig. 3) and passes through wires s+, a,(Figs..3, l5) conductor 18- on arm '18, wire b contact 0 on sleeve 4 atlever L (Figs. 1, 9) conductor II, (Fig. 10) contact 1, wire 0+, relayEl.4, wire 0-, passing normally through terminal I09 (Figs. 1, 12) whichis an element in the s (Figs. 15, 3) back to source ZZ (Fig. 3).

mechanism superimposed by the disk [3 (Fig. 1) and presently explained,conductor I'll (Fig. 12) wire a'- (Figs. 1, conductor 19' (Fig. 15) theterminal of wire b and thencethrough wire The continuity oi this circuitappears more simply in Figure 20, presently described, wherein details,and repetition of similar wires are partially suppressed. In Figure thea: wires are repre sented as entering and carried by the cable aa-, theb wires by the cable bb, certain 11. wires vby the cable on, and allwires passing between the control-boards GE -CB and the calculatingunits CU -CUK as carried in the x, sex and arm: cables. when the arms18, 18' reach the terminal of wires b il b"---, a and there com-' pletecircuit to the relay El.4; this relay EM (Fig. l) contracts its plungerand breaks, at bridge 63, the circuit to relay Eli (Fig. 3) through wiree which thereuponv releases its plunger and breaks, in turn, at bridgec2, circuit to the electric clutch EU. The electric clutch Elf)thereupon releases wheel 43, and arrests the audit wheel 55 at anangular displacement of two spaces corresponding to the displacement ofarms l8, it, to the index number of the wire b, and to the price numeralselected by vendor on bar 2 (Fig. l).

At bridge M (Fig. 3) on the plunger of relay El.2 circuit through wire21. is broken," thus de- 'energizing relay El.8, and electric clutchE15.

controlling the dime section, (Fig. 1) is then involved. The vendor insuch case fixes sleeve 4 on left-hand bar 2 so as to expose the numeral1 indicative of one dime, and sleeve 4 on the right-hand cent bar 2, asabove explained, so as to expose the numeral 2. The right-hand bar 2,when purchase leveris deflected, will now operate upon the calculatingmechanism (Fig. 3) exactly as when the price be two cents; and auditwheel 45 of the cent section will be arrested at a displacement of twospaces, as above described. Lei't-hand bar 2 (Fig. 1) and the circuitsthereby closed, operate with similar effect upon audit wheel 45 (Fig. 3)of the dime section,

through relays El.2' (Fig. 3) and El.4, (Fig. 1)

circuit through wires 17. to electric clutch E15, and relay Ell, incommon with the relay Deflection of lever L breaks circuit to relay ELI(Fig. 1), if price be-twelve cents, at bars both 2 and 2'; but this iswithout further effect than when broken, as above described, only at bar2.

Relay E11 (Fig. 3) energized through wires o and e retracts its plunger,and is immediately held in stick through wire In which is closed atbridge 5i and transmits current to relay EM through bridges ii, iii.'Wire it carries current to relay EM. and electric clutch EELS, inmanner above explained. At bridge $2 circuit to electric clutch 521.? isnow ciosed. This circuit originates at source Z2 and flows through wire3+, bridge 82', s+, electric ciutch 2321.! and through wire s-, back: tosource Elect clutch Ell nowenergized and rotated thror Ii action ofelectric clutch EH5 clutches wheel iii floating on shaft t2 andtransmits movement through the left laterai and, central wheels-oi?diiiercntial D1, to wheel 84 fixed on shaft 46" and thereby to auditwheel 45 likewise fixed onshaft 48".

It the price be twelve cents. arms l8, 18' revolving, first completecircuit at terminals of wired b, a-, b'- (Figs. 11, 15) to relay El;4'(Fig. 1); and arrest audit wheel 45' of dime section .at displacement ofone space. Electric clutches E15, E11, and relay Eli, are all howeverstill energized by wire 12. through bridge Bl at relay E12, and auditwheel 45 continues to rotate, until arms l8, l8 complete circuit atterminals of a b a b These energize relay ElA which breaks circuit totherelay E12 and arrests audit wheel 45 of cent section at displacementof two spaces. Relays both E12 and E12 having now released theirplungers, final interruption of current through wire h is effected toelectric clutch E15, and relay E13. Wheel 38 is thus released, arrestingtransmission or motion to shaft 52.

Should the number of dimes in price be greater than the number of cents;relay El.4 will first be energized and relay El.2 first release itsplunger. Should the number of cents and dimes in price be equal; circuitto relays El. and EM will be closed through the same aand b wires andbeing energized thereby at the same moment, circuits to relays E11 andE12 will simultaneously be broken.

Current through wire c, as already stated, immediately on completingcircuit to positive poles of relays El.2, Ell, (Fig. 3) is interruptedand relays ELZ, Ell (Fig. 3) are then held in stick through wire -h. Thenecessity of immediately breaking circuit through wire y will nowappear. For if not so broken, and circuits to relays EM, El.4 (Fig. 3)were severally closed through different wires :1, b, a-, wires 0 b and ab and corresponding nega- 'tive wires, for example, circuit broken torelay E12 as arms l8, l8 reach the position of the b-, through terminalof h would, if wire 9 be not broken,.

immediately again be closed,- as arms 18, 18' pass onward towardsterminal b This would cause audit wheel to resume its movement, andfalsify the price which it sets up.

' This invention contemplates, moreover, as presently explained, thesimultaneous operation of a plurality of control-boards and calculatingunits by means of the same motor and the same arms 18,18 (Fig. 20). Inorder, accordingly, that the audit wheels of all calculating units soengaged may correctly reflect the angular displacement of thearms l8,18, the action of all calculating units is retarded until the momentthat the arms 18, E8 begin a revolution, at which instant and only then,circuit through wire 9 is closed at con tact plate I4 (Fig. 15), aspresently explained, and initial impulse is-imparted simultaneously tothe relays Eli, El.2 etc. of all calculating units, on which wires e ore are closed.

A sales lever (Fig. 1) may be held in deflected position, duringoperation, by means cl 9. finger 21, (Figs. 1,9) one such' finger beingprovided at each purchase lever. Each finger Z1 is fixed on the 28, towhich'is attached a shaft crank journaied to the plunger of the solenoidEH2. The solenoid EH2 is in a circuit winch originates at. source .232.(Fig. 3) and passes through wire s+, bridges or iii at relays 32.3, wireis, (Figs. 3, l.) relay EH2 (Fig (Figs. 1, 2, 3) he i. 3). Solenoid EH2(E ii) so energised, as the contact piate it (lit closes circuitthroughthe wire a to the relays EM, ELI, re

to source ZZ and throng 'tracts its plunger downwards and thereby rotheother sales levers and prevent displacement w tates finger 21 into suchposition that it engages the lower extremity of bar 2, when the bar bein the dotted position shown in Figure 9. It thus blocks the return ofthe bar 2 to zeros- Similar fingers pass into the pathway oi. bars 2 atof such other levers, while the first lever is displaced. The circuit tosolenoid El.|2 through the wire It being presently brokenat bridge 5|(Fig.'

3) when relays-Ell, El.2' release their plungers, the sales lever (Fig..l) is restored to zero post.- tion by action of the spring 25. Shaft28, the fingers 21 and the plunger of solenoid EH2, are restored to zeropositionbythe spring 35. v

Mechanism for setting up the payment- The cost of merchandise, assumedto be two cents, having been set up an audit wheel 45 (Fig. 3), thiswheel is now displaced two spaces in direction opposite to clockwise.Let tender of two cents now follow to the effect that audit 4 wheel 45,be turned two spaces back to zero, and the tender balance sale.

Referring to Fig. 2, a series of coin receivers are shown, eachcomprising a channel, such as channel 95, provided with a slot 86 inwhich a coin 91 may be inserted. There are four such channels and slotsshown in present drawings, which from right to left may correspond tothe cent, five cent, dimeand twenty-five cent coins.

similar manner also by the introduction of the Assuming that the priceof merchandise be two cents, the purchaser may, for'example, insert 'acent coin in the right hand slot 85. The coin descending channel 85presses againstthe arm 98 of a pendulous fork pivoted at 89 whose otherarm 90 is displaced outwards and closes through a contact plate 9|thereto attached, certain circults now to be described. 1

So closed at contact plate 9| (Fig. 2) and in '(Fig. 2) wire 1' (Figs.2, 1, 3), relay El.3 (Fig. 3)

and wire s, back to source 'ZZ. The circuit through the wire iis activeonly .as the coin 91 (Fig. 2), for example, in falling, displaces thecontact plate 9|. Relay E13 '(Fig. 3) retracting its plunger is,however, held in stick'through bridge 64, by wire h, circuit of which,already described, is closed by the relays E12, E11. The; relay ElJ soheld in stick, switches, at bridge 55 now raised, current originating atsource Z2 and flowing through wire 8- to the negative poles of electricclutch El.5', (Fig. 3) whose positive pole is connected withextensionspf wire h leading back, as already traced, through wires 3+.to source ZZ.

The electric clutch 111.5 so energized, clutches wheel 99' whichtransmits, through wheel 4|,

clockwise motion to shaft 42, and thence, in like direction, to theaudit wheel 45,45.

Likewise closed momentarily at. contact plate 9| is circuit to relay El.(Fig. 2). This circuit originating at-source ZZ (Fig. 3) through wire8+, (Figs. 3, 1, 2), contact plate 9|, wire 1, bridge 92, relay.El.|4,wire s, (Figs. 2, 1, 3) back toomirce ZZ (Hg. 9). Relay EH4, momenatzero.

. tarily so energized, contacts its plunger upwards and is held in stickthrough contacts 93, closing at bridge 94 the circuit through wire 0 tothe negative pole of relay El.2 (Fig. 3) whose positive pole is suppliedby wire g closed momentarily through wire g at contact plate 14, (Fig.15) and then by wire h, as hereintofore described. Circuit-is closed toelectric clutch E11 at bridge 52 (Fig. 3) At bridge95 (Fig. 2) circuitis closed by the relay ELI-4 between wires b and c The wire 0, ashereintofore disclosed, leads to the positive pole of relay El.4(Fig. 1) and wire b to its terminal at arm 19 (Fig. 15)."To'the'negative.

pole of the relay El.4 (Fig. 1) circuit remains closed through wire c-(Fig. 1) terminal I59 (Figs. 1, 12) conductor I'll (Figs. 12, .13), wirea'--, (Figs. 1', 15), conductor 19- (Fig. l5),-wire b, and wire s' backto source ZZ (Fig. 3). Circuits now being closed at relay ELI. and ELI(Fig.

3) .to' electric clutch El.5', El.| and relay ELI, clockwise movement isimparted to' audit wheel 45 through transmission hereintofore described,until arms 18, 19' close circuit at terminals of wires b b of wire e atbridge 53 to relay E12 (Fig. 3). Audit wheel 45 is thereby arrested atdisplace- I ment of one Spacaconforming to the tender of one cent.Another one cent coin now may beintroduced at slot (Fig. 2). and theaudit wheel 45 (Fig. 3)

Circuitthen completed to relay El.4, this relay contracts its plungerand breaks circuit be therefore displaced one more space-in manner justdescribed. Tender of the two cent price is thus completed, the auditwheel 45 resting now If the price may be tendered. The dime is insertedinto channel 85" through slot 85". The fork 88", being therebydeflected, circuit is closed at con; tact plate 9| on wire '2' totherelay El.3 (Fig. 3)

94" circuit to negative pole of relay E12 (Fig. 3)

be twelve cents a dime further,

. 40 in the manner of the cent, and relay E115 (Fig. 2) is energized andheld in stick, closing at bridge through wire 6' (Figs. 2, 1, 3), andclosing to relay El.4 (Fig. l) at bridge (Fig. 2) wire '1) upon 0circuit to the negative pole of which is closed, in common with thecircuit to the negative pole of relay El.4, through the wire c' ashereihtofore described. Relays El.2',El.3, (Fig. 3 being energized,circuits are closed on electric clutches E15, El.|',and relay El.8, andmovement is transmitted to audit wheel 45', through 43,

D 84 'as hereintoiore described, until arms 19, I5

close circuit to the relay El.4 at terminals of wires a ,'b (1 b thusbreaking circuit at bridge 53' to relay E11 and thereby arresting theaudit wheel 45' at a displacement of one space corresponding to thetendered dime.

If the price be five cents, and a five cent coin be tendered at the fivecent channel 95' (Fig.2), the operation is similar to that effected bythe cent. Circuit is closed at-bridge 94' to relay EL! (Fig. 3) throughwire e and to relay El.3 (Fig. 3) through wire 1. Wire 0 to the positivepole of the relay El.4 is closed-at bridge 95' (Fig. 2) onto wire bthereby arresting audit wheel 45 at clockwise displacement of fivespaces, conformably to the value of the five cent coin. v

A twenty-five cent coin, inserted in its appropriate channel 95" (Fig.2) closes at contact plate 9 circuit through wire i to relay ELI (Fig.3); and operates upon both the centarid dime sections ofcalculatingmechanism (Fig. 3).

-'It closes, at contact plate 9|" circuit through wire 7", to the relayI] (Fig. 2) which contracting its plunger completes circuit through wiree to the negativepole of the relayElJ" (Fig. 3) and closes circuitthrough wires 1) and c, to relay 211.4, thereby setting up two dimes onaudit wheel 45' (Fig. 3-) in manner above described. At contact plate 9|(Fig. 2) the twenty flve cent coin also closes, through wire 7'1,circuit to relay ELIS.

normally operated by the live cent coin. Relay ELIE so brought intooperation sets up, in manner above described, five cents on audit wheel45 (Fig. 3) while the relay ELI'l'ls setting up two dimes on audit wheel45'.

, Mechanism for clarin a-the coin slots A saleis contemplated before atender. Otherwire the mechanism would merelyreturn' the tender in theform of change. It is necessary, moreover, to maintain the circuitsclosed at the contact-plates 9i, 9!, 8!", 8I (Fig. 2) until circuits beestablished to the relay El.2 or E11 by the wire g energizedperiodically at the contact N (Fig. 15) as the arms l8, 18' pass zero.-In order to close the coin slots 86, 86', 86", 86' (Fig. 2) until a saleis effected, and to keep circuits closed momentarily at contact plates8!, 9| SI", SI', a shutter and a detent are provided at each coinchannel 85, 85, 85", 85. Pivotecl I the'pathway of the coins. Theshutters pass into the coin channels immediately beneath the coin incommon to the shaft 98 (Figs. 2, 11) placed horizontally at the rear ofthe coin channels,

- withinthe casingoi the control board, are the rods l5, l, "i5", 15''each or which carries on its upper extremity a. shutter, such as shutter81', and at its lower extremity a detent, such as l6, l6, 75'', 16". Therods, such as", 58', oscillated in common, as presently explained,project the shutters and the detents alternately into slots 86, 86, 85",86, thereby obstructing tender, and the detents enter the channelsslightly beneath the extremity of the arms 88, 88, 88", 88', where theyretard the passage of tendered coins at a level which permits the coinsto hold the arms 83, 88', 88",88' deflected. and circuits atccntactplates 8|, 9i, 8|", SI closed.

Fixed to the extremity of the shaft 88 is a crank journaled to theplunger I88 which plunger -is common to solenoids both El." and E1.I'8.

Solnoidjllill is in a circuit which originates at source 22 (Fig. 3) andpasses through wire s+, (Fig. 3) wife n, contact plate 5|, bridge 69 atrelay El.8, wire n YFigsI 1,-2) solenoid El.l8,

and through wire s, (Figs. 2,1, 3) hack to source 22 (Fig. 1). SolenoidE118 (Fig. 2)' is in circuit deriving current from wire it hereintoforedescribed, and flowing from solenoid EH8 through wire 8-, (Figs. 2, 1,3)luck to source ZZ (Fig. 3) So long as the circuit through wire 11immediately retracted by the solenoid El. I t, eldergized through anextension of the wire it which, as already explained, becomes activewhen a sales lever be displaced, current flowing; through wire s- (Figs.2, l, 3) back to source 212. Circuit through wire is. using broken, whenthe operation The plunger I, is 9 now released by the solenoid ELIB, butit isat the sales lever (Fig. 1) is completed-and the plunger I88 (Fig.2) being then freed by the solenoids both ELII, EH8, the spring lIlIrotates the shaft 88, oscillating the rods 15, I5, 18", 15",-

and moves the shutters into such position-as to permit tender or a coin.The coin 81, for example, passing into the coin channel 85, is arrestedby the detent '18, the coin deflecting the arm 88, and

holding the circuits at contact plate 9! closed,

until circuit be closed at the contact plate 14;

(Fig. 15) through the wire g to a relay E13,

(Fig. 3), and the wire 11. be energized at bridges (Fig. 2). 1 This- 6I,8I', to the solenoid I9 solenoid E118 retracting then. the plunger I98,

oscillates the rods T5, T5, 15,", 75", releasing thereby the coinretarded at the detent l8 and wire h. The shutters, suchas 9'1, beingagain openedby the spring lili, another coin may then be tendered, theoperation being repeated until tender equals or exceeds the sales, when,as presently' explained, circuit is closed through the wire it to thesolenoid E118. (Fig. 2) which finally contracts the plunger Iilil andvclosesthe shutters, such as Q'Mpreparatory to a' future sale. 'Retender.

If it be assumed that the price of merchandise be twelve cents, andatwenty-flve'cent coin be peated sales mayyhowever, be eiiected beforepaid; thirteen cents are returnable as change.

But before describing the operation of change release, the mechanism ofintersectional transmission, and in the event of over-payment, the res-'toration of audit wheels-45, t5 (Fig.3) to zero, preparatory toa'f'uture operation,-first-should be disclosed.[

Mechantmn of intersectional transmission lower to a higher section only,is eifected through the rotation of the disk 48 (Fig. 3) by the electricclutch El.9 which is of type shown in Figure-'6.

' The electric clutch El.8 is fixed on the extremity Intersections]transmission, which is from acarried through the wires-,backto. sourceZZ.

.. Theeontact band I28, I28 (Fig, 3), to the positive pole of electricclutch 1511.8 (Fig. 3) is so mutilated that the electric clutch isenergized and ro tates'the disk 48 in displacements of 18, only asaudit'wheel 45 passes through its fifth and tenth spaces, underinfluence of tender. At each of these fifth and tenthspacedisplacements, the value of flve one cent units is transmitted to'andtotalized at the audit wheel 45' as half a dime.

the transmission from the electric clutch E18 to the audit wheel 48'being through the disk 48, wheel 48, the diiferential D the wheel 84 andshaft 48.-

The position of contact bands I28, J29 on electric clutch El.8 (Fig. 3)being such that, at'

tion would be transmitted onwards to all higher sections, howsoevernumerous they possibly might be. Utilizing this principle, a denudedsec? tion is provided, consisting only of an arm 50 and a disk 48 towhich motion is transmitted by elec- 1 the clutch E13, in manner of theelectric clutch I El.9 described. The arm 50 is virtually a limitedsubstitute for an audit wheel corresponding to the dollar.

i i The positive contact band on the electhe clutch EL! is mutilatedthrough .the same arcs, as is the positive contact-band on the elec-Btric clutch El.9, and transmission to the arm 50 from the next lowersection, is at the same inter vals as between the sections therebelow.

The arm 50 carries a contact plate 5i which breaks circuit on wire n, atterminals i9! at the first spacedisplacement of arm 50 in any sectionconsequent on sale, and arm 50 is returned to zero and closes circuit onwire n at terminals by a five space displacement, at the section nextbelow; whereas'there is a coin of no denomination operative on suchlower section, which is sufficiently large, to move arm 50' back to zeroand-beyond. The tweny-five cent coin, for example, which displaces auditwheel 45', only two and a half spaces, is the highest coin whichoperates directly upon the section of. the dime. Should the apparatuscomprise a dollar section, the fifty cent coin would operate upon thesection ofthe dime. But the arm 50 would then be placed above the dollarsection; and the $2.50

coin being the highest operative denomination, again would be insufllcient to carry the arm Mechanism jo'r'restorinq elements to zeroposition Atthe first and every contraction of a plunger by the relaysEl.2, Ell (Fig. 3) a circuit through wire 1' .is broken at bridge 82, 52to relay EU I. This circuit" originating at source ZZ passes throughwire 's, bridges 82', 82, relay EL, and wire s+, ,back to sonrce ZZ.Relay E1. so deenergized releases its plunger. and closes at bridge H2circuit to electric clutch Elifthrough 1: from bridge 89, which passingthrough electric clutch ELII, ,retums. through wire s--, to source. ZZ.Electric clutch El. so energized clutches and revolves disk H5 on whichis fixed the cam ill. Rotation of disk III causes the cam ill to carrythe h l ler of relay El. upwards to zero position where it is retainedby the relay El. |l. This breaks circuit to re- ELi at bridge. H2; butnot before the same n circuit has been closed to electric clutchEl. Ithrough contact plate 3, (Figs. 3, 8) on the face of' disk H5. Rotationof shaft 42 and disk III is thus continued until, at the termination'ofa single revolution, circuit to electric clutchElJ (Fig. 3) is brokenat contact plate H3 (Figs. 3, 8). Immediately before disk 5 completesits revolution, the' contact plate H4 momentarily completes circuittorelay ELI (Fig. 1) through the wire q (Figs. 3, 1) closed at bridge IIon plunger of relay El.-i (Fig. 1). This circuit originating at sourceZZ (Fig. 3) passes through wire 8-, contact 4, wire q, (Figs. 3, 1)bridge 21 (Fig. l) relay ELI wire s+, (Figs. 1, 2, l, 3) back to sourceZZ (Fig. 3). Relay ELI, Fig. 1) momentarily so energized contracts itsplunger and is held in stick through circuit of wire 0 which since nosales lever is deflected,. is now closed. Contraction of plunger 24 byrelay ELI releases the revolving door 25, and transaction is completedby the delivery thereby to purchaser, of the merchandise hithertodetained, and change, if-

any, presently described.

The electric clutches El.'|-,- El. (Fig. 3) are again operative infinally restoring the audit wheels so, 45' to zero, it the audit wheelsbe dispiacea through excess tender at the termination of a transaction,The electric clutches ElJ,

El.| are then respectively energizedby circuits which pass frombridgesIII, II, throughwires n and contact plates 40, 40 (Figs. 3, 4) toelectric clutches ELI, EU and thence through wire by the audit wheel 45is shown in Figure 4. They are carried respectively on a face of eachaudit wheel 45, 45', and extend throughout the circumi'erences thereofsave .at a slight are, at

which, if payment exactly equal price and the audit wheels 45, 45' (Fig.3) already are at zero an extension ofwire n, which is howeveriorth-fwhim/4'5. 1' h there back to zero. W r

with broken atbridge 6| and at arm 50. Circuit to relay El. maypresently be closed at bridges 62, 52'; but this relay El. is ofmagnetic energy sufllcientrwhen' energized, only to retain itsplunger-,but not sufllcient to contract it,.-Circuit through wire 1: toelectric clutch ELI as yet inactive, remains broken at arm II a whileclosed at bridge H2 preparatory to a fin operation after tender becompleted.

.When completion of tender has restored arm 50 to zero, closing circuiton the wire n at terfixed thereon the electric clutch ELII. Electricclutch E1." is in circuit extended through wire they are severallyarrested as circuit be broken at contact plates 40, 40".

During restoration of the calculating unit to zero position,intersectional transmission is suppressed, the electric clutches ELI,EL! be then inactive.

Mechanism of change release -s back-to source ZZ (Fig. 3). Thecontactplates 40, 40' are similar'intype. That carried multiplication intransmission by each single.

revolution of audit wheel 45; for the same number of cent coins arereturnable as change, at

six to nine cents over-payment, as at one to four.

If the price be twelve cents, disk 54 is revolved in setting up ofprice, two spaces in clockwise direction, to the effect that the contactplate 3 (Fig. 4) carried by disk 54 is opposite bench 55. The payment ofa twenty-five cent coin rotates disk 54 in response to the five centelement therein, an entire revolution in opposite direction; and contactplate 3, again opposite bench 55, completes a circuit extended throughwire n from bridge 69 leading through wire n- (Figs. 3, 1) to solenoidE120 (Fig. 1) whence it returns through wire s, (Figs. 1, 2, 3)v back tosource ZZ. Solenoid El.20 (Fig. 1) so energized retracts its plungerdownwards, and through bell-crank H5. displaces a slide H6 (Fig. 1) soperforated, that it embraces and dislodges the bottom cent coin of acoin column, from the container Ila- The coin falls upon the inclinedslide-way I20 whence it descends by gravity through channel I08 upon thedoor 25 (Fig. 1) and is finally delivered to the purchaser-with thepurchased merchandise.

During restoration to zero and release of change, a circuit is closedthrough an extension of wire'n from bridge 61 at relay El.8 (Fig. 3)through contact plate 56 on the face ofdlsk 54 (Fig. 3) to electricclutch El.l (Fig. 1) and thence through wire.s, to source ZZ. Thiscontact-plate is exactly similar to the contact plate 40 shown on theaudit wheel 45 (Fig. 4). R0- tated back to zero by electric clutchEl.l0, so energized, during restoration, disk 54 successively closes,through contact plates 2, l, (Figs. 3, 4) circuit to solenoid E120(Fig. 1) which thereupon releases two more cent coinsas change.

Circuit through wire n to the electric clutch EHO is broken at contactplate 56, as disk 54 reaches zero; and movement of the disk is therebyarrested.

Three cents having been released, a dime is required to complete thethirteen cents returnable as change.

Simplification can conveniently be introduced in the release ofdenominations higher than the cent. Since the number of higher coinsrequired in making change is smaller, one five cent coin only is soemployed; two dimes; and one twentyfive cent coin, if the fifty centcoin then enter change.

In mesh with audit wheel 45' (Fig. 3) is the wheel 53" integral with thedisk 54', which is revolved twice by each single revolution of the auditwheel45, the order of coins released being recurrent of each successivehalf revolution of audit wheel 45.

Disk 54 (Figs. 3, 7) is provided with contact plates in concentricseries 20, I0, 25, capable respectively of closing circuits at bench 55'through wires n. ,,n. n. n. to solenoids El.2l, (Fig. 1) E123, E122,E124 which release respectiveiy as change, the five cent, dime, twodimes and twentyfive cent coins. Higher sections substantially similarto the section of the dime, may be added to the apparatus, such as thesection of the dollar, which would release the fifty cent, the dollarand the two-dollar fifty denominations; and the section of the tendollar, which would release the flve dollar, the ten andthe twentydollar' coins;

As above explained, the audit wheel 45 of th dime section, in setting upa price, is displaced 18 at each first and sixth ,space displacement ofthe cent auditwheel 45. The audit wheel 45',

assuming the price to be twelve cents, is'displaced 36 further insetting up the dime. This leaves the audit wheel 45' at a total angulardisplacement of 54; and as the transmission from audit wheel 45 to thedisk 54 is in the ratio of one to two, the disk 54 is accordinglydisplaced 108, exposing to the bench 55 the contact plates along theimaginary line marked 35 (Fig. 7). Upon tender, as assumed, of atwenty-five cent coin, disk 54 is rotated one space in oppositedirection by movement transmitted-from the cent section, and four spacesby movement originating in the section of the dime. Disk 54' now closesat bench 55' circuit at the contact plate along the imaginary linemarked Ill, through wire 11.") to solenoid E122 (Fig. '1). The circuitso closed originates at source ZZ (Fig. 3) and is completed throughwires s+ n, contact plate along line ill on disk 54 (Fig. '1) wire 12.")(Figs. 3, 1), a bridge at the relay E125 (Fig. 1) to the solenoid E122,and thence through wire s, (Figs. 1, 3) back to source ZZ (Fig. 3).Solenoid El.22 (Fig. 1) so energized, retracts its plunger downwards andreleasesthe required dime as change. a

Should excess payment require a five cent coin as an element in change,a contact plate of innermost series on disk 54' (Fig. '7) will finallyclose, at bench 55, a circuit through wire n.05 to the solenoid El.2l(Fig. 1) which will in similar manner liberate the required five centcoin.

The operation of solenoid E124 (Fig. 1) circuit to which may be closedat the contact plate originating at line 25 through wire n.25at bench55, is exactly similar, in releasing a twenty-five cent coin.

Should excess payment require twenty cents as element in change, circuitwill similarly be closed at bench 55' by contact plates of seriesoriginating at line 20 through wire n20, to solenoid El.23 (Fig.1) whichdisplacing slide I I6? dislodges the next to bottom coin from thecontainer 9. and at-the same time, bymeans of a lug fixed to slide H6which bears against a lug fixed to slide ll6. displaces the slide il5.and releases from container H9. the bottom coin as well.

Should the change involve coins of diffe ent (Figs. 3, '7) passing tozero position, may again close circuit to solenoid El.2l (Fig. 1) atfurther contact-plates which may be progressively exposed (Fig. l). Thecircuit by which solenoid El.2l (Fig. 1) is thus held in stick, extendsfrom bridge 59 at relay El.8 (Fig. 3) through wire n (Figs. 3, 1) bridgei24, (Fig.1) solenoid El.2|, and through wire s- (Figs. '1, 3) back tosource zz (Fig. ,3).

In order similarly to prevent completion of ing initial circuits,immobilizes the remaining.-

1O v circuit, through further contact plates on the disk 55' (Fig. 7), tsolenoids (Fig. 1) 11 01 involved in releasing the necessary change andwhich are consequently not so held in stick, the

relay E115, is provided, through the bridges at which pass; the circuitsof wires 11., =-n.=, 11.

1L, which supply,respectively, initial impulse to the solenoids El1I,E112, E113, E114. The relay E115 is in a circuit extended from bridge 59at relay El.8 (Fig. 3) which passes through wire 12.

(Figs. 3, 1) relay E115 (Fig. .1) wire s-(Figs. 1,

3) over bridges I23, I23, I23", I23"' (Fig. 1) back to source ZZ (Fig.3). The moment any one of the solenoids El1i, E112, E113, E114 (Fig. 1)contracts its plunger, circuit is broken at bridge I23, I23, I23" orI23' to the relay E115, which, releasing its plunger and breaksolenoidsElli, E112, E113, or E124.

Mechanism for multiplying the value of merchandise released package ofmerchandise need manipulate, for reasons presently described, only thesales lever. Should he desiretwo or more such packagessix for example-herotates manually, before ma nipulation of the sales lever (Fig. 1), thedisk I3 so that the orifice I52 shall be arrested at the stop I54.

Disk I8 is fixed to a shaft I55 (Fig. 12) which carries, attachedthereto, a disk I55 (Fig. 12, 13), and also at its lower extremity aflange I'I on which is mounted a key I58 (Figs. 12, 13) capable ofengaging the notch I58 (Fig. 13) near the axis of the disk I50 whichfloats on shaft I55 suspended normally on the flange I5I'. The disk I55fixed on shaft I55 constantly rotates with disk I3; and the disk I50participates in thedisplacement of disk I3 and I55 when a purchasermanipulates thedisk I3.

As presently described, the position of disk I 50 governs the number ofpackages which shall be released at a single manipulation of a saleslever; and the position of diski55, determines the angular displacementat which arms 18, 18 (Fig. 15) shall close circuits to relays'EiA, Ei.4'(Fig. 1) and thereby arrest movement of audit wheels 45, 45' (Fig. 3) inconformity to price.

The plunger of the solenoid ELIZa' (Figs. 1, 12, 13) journaled to shaft28 (Figs. 1, 13) is Journaled also to the extension thereof, shaft 28,-

which carries a cam I55 (Fig. 12) placed immediately beneath thedepressed centreor disk I50. when the solenoid E1120. rotates shafts 28,28', at beginning -cit-a sale. as hereinbefore described, cam i55 soraises. disk I50 upon the perpendicular shaft I55 that the notch I59 in.to close circuit to the positive poles oi? the solenoids El.I3, ELI3 orEH3 (Figs.- 2, 13) at terminals I88 of wire m and to release at eachimpulse a package of the merchandise selected at the levers L, L, L"(Fig. 1).

The circuit closed to the solenoid El. (Fig. 2).. for example, when apurchaser desires a single package, and disk I3 (Figs. 11, 12) as abovestated, is not displaced, has been already traced. The terminals atwhich circuit may be closed 'at arms I8, I8. (Figs. 14, 15) to therelays 101.4,

El.4' are grouped in planetary and in relatively like position abouteach of these two arms. At

one face of the pathway of arm I8 are the termirials of the positivewires b to b, which wires are shown as emerging verticallyi'rom theorbit of the arm I8, and advancing towards its axis in the form ofspirals. At the other face ofthe pathway of arm I8 the wires a to aconnected with the positive pole of the source ZZ through wire s+intersect the wires b to b,' being mounted on concentric benches atprogressive distances from the axis of arm. I8, the terminals or thewire a being the most distant from this axis, andthe terminals of thewire a the least ,remote. At each intersection of wires (1 and b, areterminals between which arm I8 revolving closes, at progressiveintervals, through conducspiral wires b to b are connected with the Isource ZZ (Fig. 3) through the wire sand the wires a to aemerginghorizontally from their circular benches, serve as negative wires torelays both EU! and El.4', at any and all controlboards (Fig. 20)I Anindefinite number of control-boards may simultaneously draw current fromthe same a-, band a, 5 wires.

Let it now be assumed that the price of merchandise established byvendor at sales lever L (Figs. 1, 13), for example, be three cents, andthe number of packages desired, six. Purchaser rotates disk I3, (Fig. 1)so that the orifice I52 is moved to stop I54. .This displaces the diskI50 (Figs. 12, 13) so that contact plate I5I (Fig. 13) on disk I50 isexposed to terminals I58; and the disk I55, so that a latch III,responsive to the spring III may engage the pawl I18. This latch IIIispivoted at a convenient portion oi.

the casing and is attached to the plunger of the solenoid El.5, normallycontracted. The circuit to the solenoid E15 is, however, broken at(Figs. 1, 13) and, the price being three cents,

the wire I; closes on wire c. Circuit through the wire it becomingimmediately active, solenoid "El.l2 contracts its plunger downwards androtating shafts 28, 28 raises disk' I 50 through action of cam I55 (Fig.13) so that the notch Ill escapes key I58 (Figs. 12, 13). Circuit beingcompleted at levers L and at terminals I85,to the solenoid El.i3, apackage of merchandise is released. As'disk I50 returns to zero underten- 'S10n'I0f spring. I18 (Figs; 12, i3) .contact'plates I51 151 ,151I51, I51 (Fig. '13) successively close circuit at terminals I58, andfive more packages are released. Disk I55 is meanwhile detained by latchI".

- arithmetical progression, the terminals of wire nine terminals I69--I69 capable respectively,

according to the position of the disk I56, of closing circuit atterminals of negative wires (1 to -a through conductors III to III(Figs. 12, 13) transversing the disk I56. If, assuming that the numberof desired packages be six, and disks I3, I56 be correspondinglydisplaced, the lower terminal I2I of conductor III will close onterminal I69 at bench I10 (Fig. 12) and the upper terminal I22 ofconductor I'II will clos on terminal of wire a fixed on plate I53, soswitching current onto wire c and the relay ElJI from the wire a.

Assuming that the terminals of wire a (the terminals of Wires b a N, asexplained, being in analogous positions) be spaced on bench BI, one fromanother at distances of 3.6 (Figs. 5, 14), the terminals of wire a onbench 8| are spaced at arcs twice as great; the terminals of a atarcsthree times as great, and so on, in

a being spaced at'arcs six times as great, and those of a at arcs ninetimes as great, as are the terminals of a It, is obviousthat, if circuitbe closed on wire b at sales lever L (Fig. 13) and on wire a at diskI56, the angular displacement of arm I8 'will then be twice as greatbefore circuit to relays EM, E14 be completed, as it would be, werecircuit closed through wires a and b Similarly, if wire b correspondingto the price three cents, be closed at sales lever, and the wire acorresponding to six packages, be closed at disk 156, the angulardisplacement of arms 18, I8 when completing circuit to relay ElJI, willbe 6X3, or eighteen times such displacement of arms I8, I8 as wouldcorrespond to a unit space displacement of audit wheel45 (Fig. 3). Theprice conveyed to the audit wheels would be, accordingly, the product ofsix and three. Eight cents accordingly set up on audit wheel 45; and tencents are totalized as a dime on audit wheel 45' through intersectionaltransmission. In like manner the number of units set up on the auditwheels 45, 45 (Fig. 3) will invariably be the product of the numeralswhich identify the 1) wires closed at a sales lever L, L,

L" (Fig. 1) and the awireclosed at disk I56 (Fig. 13).

Solenoid E16. (Figs. 12, 13) which controls the latch III is in acircuit which originates at source Z2 and is conducted by wire s,through contact plate I12 (Fig. 13) at disk I60 and bridge at solenoidEl.I2a to solenoid El.I2a, and thence flows through wire s+, back tosource ZZ. This circuit is broken at contact-plate I12 by the'initialdisplacement of the disk I60, in

order that the latch II1 may descend on pawls V Hil -I26 and remainsbroken at bridge 32 when solenoid El.I2a retracts its plunger downwards,in order that the disk I56 may be re tained in displaced position untilcompletion of setting up the price. When the setting up of price hasbeen completed, wire h to solenoid El.I2a becomes inactive; the solenoidE1120 releases its plunger upwards through action of the spring 30(Figs.' 1, 9) andcompletes at bridge 32 (Fig. 13) the circuit to thesolenoid- ELs,-...'lhis solenoid El.6 now energized, retracts itsplunger .and' withdraws the latch Disk I56, so liberated, is restored,together with disk I3 (Figs.- 1, 12),'by spring I60 to zero, where keyI58 encountering the notch I59, (Fig. 13) permits disk I60 to sink toits initial level.

I" from the pawl I10".

cumulated sales may cause arm 50 (Fig. 3) to complete a revolution andreach zero. In order,

therefore, that completion of such revolution may not close circuitthrough the contact plate 5I at terminals I9I and terminate thetransaction without tender; the collar I (Fig. 3) supporting terminalsI9I of wire 11., is traversed by shaft 46", which operates upon collarI90 by means of a screw-thread I92. The rotation of the shaft 46" causesthe collar I90 to travel laterally along the shaft 46 and to carry theterminals I9I outward beyond reach of the contact plate 5|, to theeffect that arm 50 inrevolving may pass through zero position under theinfiuence of repeated sales without closing circuit at the terminalsI9I. The accumulation of sales may, in consequence thereof, be enlargedindefinitely, and an unlimited quantity of merchandise be purchased,before final tender; since the selling capacity of anapparatus-otherwise, $9.99,' if it comprises sections only of the centand dime,-is increased $10.00 in arithmetical progression by eachconvolution of the screwthread I92.

Selection of calculating units may be disengaged. A number ofcontrol-boards or even sales establishments may thereby be served bycalculating units-banked at a common central station and actuated by asingle motor in continued motion (Fig. 20).

When a sales lever (Fig. 1) is manipulated by a. purchaser, and relayELI be deenergized, as hereintofore described, a circuit p is closed bythe plunger 24, at bridge 22. This is a pilot wire which operates on theselector only and does not extend to the calculating mechanism. (Fig.3).

Referring to Figures 1 and 3, the control wires q, e, e, h, 2', n etc.between a control board (Figs. 1, 2) and a calculating unit (Fig. 3) areindividually shown. But inasmuchas such wires do not govern theoperation of the selector,

and are merely switched by the selector onto different calculatingunits, as presently described,

these wires are represented in Figures 16, 1'7, 18,

as severally carried and extended through cables, such as cables 3: 10:2mmx In Figure 15 is shown, in principle, the method of closing abovewires onto their extensions.

.The relay E", (Fig. 15) for example, momencarried the bench 2I I,elongated, in view of clearness, and provided along its upper face witha' series 'of contact plates such as contact plate 2I2. The contactplates 2I2 close, when the bench 2 be raised by the plunger of relay.

E130", the terminals 2 etc. of the wires con-- nected to'thefixed bench2I3, onto the corresponding terminals of their. extensions atthe otheredge of bench 2I3. The wire 1) (Figs. 1, 15,

